Okay I double checked this before posting. Was in Woolworths Great Yarmouth yesterday afternoon and as part of their sale they had some Nokia 1100 mobile phones reduced down to £9.99
However there was also an Orange Sim card included with £10 credit pre-installed. This makes the phone a bargain -1p
I am not sure if this was nationwide or not but it may be worth having a look in your local store.
Hope this helps someone.